Rhytidocaulon
Rhytidocaulon macrolobum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Subfamily: Asclepiadoideae
Tribe: Ceropegieae
Genus: Rhytidocaulon
P.R.O.Bally

Rhytidocaulon is a plant genus in the family Apocynaceae, first described in 1962.[1][2] It is native to northeastern Africa and the Arabian Peninsula

Species

Species accepted by the Plants of the World Online as of February 2023:[3]

  • Rhytidocaulon arachnoideum T.A.McCoy
  • Rhytidocaulon baricum Thulin
  • Rhytidocaulon ciliatum Hanácek & Ricánek
  • Rhytidocaulon elegantissimum Hanácek & Ricánek
  • Rhytidocaulon fulleri Lavranos & Mortimer
  • Rhytidocaulon macrolobum Lavranos
  • Rhytidocaulon mccoyi Lavranos & Mies
  • Rhytidocaulon molamatarense T.A.McCoy & Plowes
  • Rhytidocaulon paradoxum P.R.O.Bally - Ethiopia
  • Rhytidocaulon piliferum Lavranos - Somalia
  • Rhytidocaulon pseudosubscandens T.A.McCoy
  • Rhytidocaulon richardianum Lavranos - Somalia
  • Rhytidocaulon sheilae D.V.Field
  • Rhytidocaulon specksii T.A.McCoy
  • Rhytidocaulon splendidum T.A.McCoy
  • Rhytidocaulon subscandens P.R.O.Bally - Somalia, Ethiopia
  • Rhytidocaulon tortum (N.E.Br.) M.G.Gilbert - Arabia
Taxonomy

Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the genus Echidnopsis which inhabits the same region. Marginally more distantly related is a sister branch comprising the genus Pseudolithos and the widespread Caralluma stapeliads of North Africa.[4]

References

  1. ↑ Bally, Peter René Oscar. 1962. Candollea 18: 335
  2. ↑ Tropicos, genus Rhytidocaulon
  3. ↑ "Rhytidocaulon P.R.O.Bally". Plants of the World Online. Royal Botanic Gardens, Kew. 2023. Retrieved 8 February 2023.
  4. ↑ P. Bruyns, C. Klak, P. Hanacek: Evolution of the stapeliads (Apocynaceae-Asclepiadoideae) - repeated major radiation across Africa in an Old World group. Molecular Phylogenetics and Evolution. 2014. v. 77, no. 1, p. 251--263. ISSN 1055-7903.
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